Kubernetes v1.37: Scale Workloads to Zero with HorizontalPodAutoscaler

Kubernetes 1.37 makes horizontal pod autoscaling to zero replicas a core, beta‑enabled‑by‑default feature. The blog details API changes, metric requirements and Prometheus adapter configuration, removing the need for external add‑ons. Engineers can now auto‑shut idle workloads and restart them on queue or external signals, saving resources.